Measurement E213M1029

Experiment:	E1-6, 2025
Year:	2001	Measurement comment: The angle ψ is the angle between the plane defined by the three-momenta of the hadron (in parentheses) and the target proton, and the plane defined by the three-momenta of the other two final-state hadrons Experiment comment: Experiment year: 2001—2002
Spokespersons:	R.W. Gothe, A. Trivedi
Reaction:	ep → π⁺π⁻p
Polarization:	none
Quantity:	dσ/dψ(p)
Q²:	3.5 — 4.2 GeV²
W:	1.65 — 1.675 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3805	0.0272	0.0624	0.0882
54.0	0.3657	0.0285	0.0468	0.0548
90.0	0.3244	0.0251	0.0404	0.0476
126.0	0.368	0.0295	0.0435	0.0615
162.0	0.3579	0.0238	0.0418	0.0591
198.0	0.3668	0.0239	0.0427	0.0605
234.0	0.3454	0.0274	0.0413	0.0585
270.0	0.3709	0.0269	0.0451	0.0525
306.0	0.3744	0.0283	0.0481	0.0558
342.0	0.3984	0.0329	0.0639	0.0911

CLAS Physics Database